/**
 * Created by blzx on 2017/1/9.
 */
var pixclPatio = 1 / window.devicePixelRatio;
//document.write('<meta name="viewport" content="width=device-width,initial-scale=' + pixclPatio + ',minimum-scale=' + pixclPatio + ',maximum-scale=' + pixclPatio + ',user-scalable=no" />');
var html = document.getElementsByTagName('html')[0];
var pageWidth = html.getBoundingClientRect().width;
html.style.fontSize = pageWidth / 16 + 'px';